Messages in this thread Patch in this message | | | From | Peter Ujfalusi <> | Subject | [PATCH 05/11] ARM: DTS: dra7-evm: Enable pcf8575 (0x26 address) on i2c2 bus | Date | Mon, 24 Aug 2015 10:20:01 +0300 |
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This GPIO expander is used for controlling various muxes on the board. By default select audio functionality over VIN6 by setting the P1 (vin6_sel_s0) pin to low.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> --- arch/arm/boot/dts/dra7-evm.dts | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts index add77ac4f302..3694046c29eb 100644 --- a/arch/arm/boot/dts/dra7-evm.dts +++ b/arch/arm/boot/dts/dra7-evm.dts @@ -438,6 +438,20 @@ pinctrl-names = "default"; pinctrl-0 = <&i2c2_pins>; clock-frequency = <400000>; + + pcf_hdmi: gpio@26 { + compatible = "nxp,pcf8575"; + reg = <0x26>; + gpio-controller; + #gpio-cells = <2>; + p1 { + /* vin6_sel_s0: high: VIN6, low: audio */ + gpio-hog; + gpios = <1 GPIO_ACTIVE_HIGH>; + output-low; + line-name = "vin6_sel_s0"; + }; + }; }; &i2c3 { -- 2.5.0
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